Oh lad, i can't believe it's not butter i haven't thrown my support here, i love me some Nintendo Retro (i mean i own the Balloon Fighter thread and i want to do a Mach Rider and Prince Sable threads)
I certainly want Takamaru to come back in a big way, and i think that if there's anyone that should get promoted to playable, it's him. With that said, im not sure if he's "the next Little Mac", since he has something that Taka doesn't, an actual resurgence back in 2009 with Punch Out Wii which proved to be very successful and boosted Mac's popularity, which i feel was a big contribution to his promotion in Smash 4 (if i remember correctly the reasons as to why he was scrapped was because of his low popularity and lack of relevance, and the latter doesn't make sesne when you consider he intetionally adds characters that haven't been relevant for years) .
With that said, he does have much better exposure now, especially in the west. Not only does he appear in Nintendo Land, Samurai Warriors 3 and others, his exposure as an AT only gives him more presence in the eyes of players.